Almanack Contributor Paul Hetzler

Paul Hetzler

Paul Hetzler has been an ISA Certified Arborist since 1996. His work has appeared in the medical journal The Lancet, as well as Highlights for Children Magazine.

You can read more of his work at PaulHetzlerNature.org or by picking up a copy of his book Shady Characters: Plant Vampires, Caterpillar Soup, Leprechaun Trees and Other Hilarities of the Natural World


Thursday, June 2, 2016

The Many Uses Of Stinging Nettle

Urtica dioica from Thomé, Flora von Deutschland, Österreich und der SchweizOne of my favorite plants is either highly versatile, or very confused. On the one hand, professional herbivores like rabbits and deer refuse to even touch it, but many people, myself included, will gladly eat it every day it is available.

While contacting it is painful, it has been proven to relieve certain chronic pain. It is steeped in over a thousand years of folklore, at one point imbued with the power to cleanse away sin, yet medical science recognizes it as a legitimate remedy for many disorders. Some gardeners consider it a bothersome weed, but others actually cultivate it. » Continue Reading.


Sunday, May 29, 2016

Understanding The Life Span Of Whitetail Deer

male whitetail deerJust about everyone who saw the Walt Disney classic “Bambi” shed a tear, or at least stifled the urge to lacrimate (that’s cry in Scrabble-ese). Even if I had known of the devastating effects deer have on forest regeneration, not to mention crops, landscapes and gardens, it still would have been a trauma for my five-year old self when Bambi’s mother got killed. (Oops—spoiler alert there, sorry.) But how might the movie have ended if they had all lived happily ever after? » Continue Reading.


Sunday, May 22, 2016

First Blooms: Juneberries

june berryAnother regional attraction has just opened, and for the next few weeks you can see the show at innumerable open-air venues across the Northeast. The performance is free, although only matinees are available.

The new event is the blossoming of a widespread, though strangely little-known, early-flowering plant. It is either a small tree or a shrub, depending on who you ask, which makes me wonder if it’s hiding something. In fact, this thing has more aliases than one of America’s Most Wanted. Variously known as serviceberry, shadbush, shadwood, shadblow, Saskatoon, juneberry and wild-plum, it is a small-to-medium size tree that also answers to amelanchier canadensis, its botanical name. Of those options, I prefer juneberry even though its fruit may ripen in early July in northern New York State. » Continue Reading.


Saturday, April 30, 2016

Paul Hetzler: Consider The Dandelion

dandelion by greg humeApril showers bring May flowers, but not all posies are a welcome sight. Although it is quite possible they arrived on the Mayflower, dandelions do not get the esteem they deserve as plucky immigrants that put down firm roots in a new land, or as a vitamin-packed culinary delight, or as a multi-purpose herbal remedy.

On this latter point, dandelion is so well-respected that it garnered the Latin name Taraxicum officinale, which roughly means “the official remedy for disorders.” There are many reported health benefits of dandelion, including as a liver support and for alleviating kidney and bladder stones, as well as externally as a poultice for skin boils. I don’t pretend to know every past and present medicinal use of the plant, and I strongly recommend consulting a respected herbalist, as well as your health care provider, before trying to treat yourself. » Continue Reading.


Tuesday, April 19, 2016

Paul Hetzler: Black Flies Bite, Spiders Burn

spidersSpiders can be dangerous, but mostly in ways you would never imagine.

A couple of years ago a guy in Seattle burned his house down trying to kill spiders with a blowtorch. In 2015 at a Michigan gas station, a man tried to kill one with a lighter and burned up a pump island, narrowly escaping injury. And Mazda had to recall 42,000 vehicles in 2014 because spiders could clog a small fuel vent line with silk, potentially cracking the gas tank and causing a fire. It’s no wonder we are afraid of spiders, right?

Fear of spiders is so common and widespread, it may well be encoded in our DNA. Obviously it would have behooved early humans to learn to be wary of spiders, as a few species are poisonous. Mind you, it’s a tiny minority, but spiders can be hard to tell apart. If something with way too many legs and eyes scurries up our leg, most of us will swat first and ask questions later. It’s a rare person whose first reaction is “Great—hand it over so I can key it out!” when their partner announces there’s a big spider in the bed. You know that person is a hardcore nerd. And that they probably have a relationship issue to work out if they don’t want to sleep alone that night. » Continue Reading.


Wednesday, April 6, 2016

Spring Music: Peepers, Wood Frogs, And Chorus Frogs

Spring PeeperEvery spring, Mother Nature takes the choir out of the freezer. And sometimes – this year for example – she pops them back in for a while. The choir to which I refer is that all-male horde of early-spring frogs: spring peepers, wood frogs, and chorus frogs. Even while an ice rind still clings to the pond edges, untold numbers of these guys roust themselves from torpor to sing for female attention.

While in our species it is mostly an inflated ego which causes males to become unusually loud attention-mongers when seeking mates, it is an inflated vocal sac which allows male frogs to be so noisy. This air-filled structure balloons out tight, acting as a resonance chamber to amplify sound. I don’t know how it is with all frog species, but the inflated vocal sac of a peeper is almost as big as it is. This contrasts with the human male, whose ego can sometimes swell to many times his body size. » Continue Reading.


Friday, April 1, 2016

Rare Species: The Stinging Rejoinder

stinging nettleHikers, anglers and other outdoor enthusiasts are urged to keep an eye out this spring for an elusive plant that may be staging a comeback. The so-called stinging rejoinder, Aculeatus depulsio, although it is a distant cousin of stinging nettle, Urtica dioica, does not actually sting or cause a rash. It is an inconspicuous, native medicinal plant which was over-harvested in the 19th and early 20th centuries, and has been hard to find since that time. However, there is indirect evidence its population could be on the rise.

Its common name comes from the way Aculeatus depulsio works on the nervous system. When taken internally, the stinging rejoinder seems to temporarily inhibit neuronal reuptake of glutamate, an excitatory neurotransmitter, in the frontal cortex. In plain English, it makes you smarter for a short time, which explains its popularity. It does lose potency quickly, though, and must be used fresh. » Continue Reading.


Thursday, March 17, 2016

Trees: White Pine Bears Important Fruit

eastern white pineThe old saw “money doesn’t grow on trees” will remain valid unless bartering ever becomes the norm, in which case fruit and nut growers will be awash in tree-grown currency. Figuring exchange rates would be quite a headache, I imagine. Our eastern white pine isn’t considered a crop-bearing tree and it certainly doesn’t sprout cash, but it has borne priceless ‘fruit’ all the same.

The tallest trees this side of the Rockies, white pines of up to 230 feet were recorded by early loggers. The current US champion stands at 188 feet tall, and in New York State we have several over 150 feet. In terms of identification, white pine makes it easy. It’s the only native pine out east that bears needles in bundles of five, one for each letter in ‘white.’ (To be clear, the letters are not actually written on the needles.) It produces attractive, six-inch long cones with resin-tipped scales, perfect for fire starting and for wreaths and other holiday decorations (might want to keep those away from open flames). » Continue Reading.


Monday, March 7, 2016

In Adirondack Forests, Trees Age Differently

grandmother tree in warrensburgSenescence is the decline in vigor that happens to all creatures great and diminutive as they close in on the life expectancy of their species. People my age suddenly find they require reading glasses to see the phone book. Though I suppose by definition anyone still using a phone book is old enough to need glasses, right?

The onset of this process varies — you probably know of families whose members frequently retain good health into their 90s, and other families where that is not the case. Of course environment is important. Eating and sleeping well, cultivating gratitude, and laughing a lot will help keep us healthier longer. But there comes a point at which even the best-preserved specimen can’t avoid the end of life.

Trees also go through senescence at different rates. Each species has an approximate lifespan after which no amount of TLC can keep them alive. One of the more popular white-barked birches for landscape planting is the native gray birch. You may love your birch clump, but those trees are old at thirty years, ancient at forty—by the time they double over and kiss the ground in heavy snow or an ice storm, they may be on their way out anyway. » Continue Reading.


Sunday, February 28, 2016

Local Bats and White Nose Syndrome

220px-Little_Brown_Bat_with_White_Nose_Syndrome_(Greeley_Mine,_cropped)Context is critical, right? Years ago I took a second job loading trucks at night, and a few guys on the dock had what you might call “white-nose syndrome.” All I had was coffee, so they could work faster than I, though they spent a lot more time in the rest room. I hope they eventually recovered.

Addiction is a serious and potentially life-threatening matter, but from a bat’s perspective, white-nose syndrome is something even more devastating. This disease, which is nearly always fatal, has killed 80% of the bats in the Northeastern U.S. in less than a decade. Initially found in central New York in 2007, white-nose syndrome now affects bats in 25 states and 5 Canadian provinces. Since it was first identified, it has felled more than 7 million bats, leaving once-packed hibernation sites, or hibernacula, empty, and pushing some species to the edge of extinction. » Continue Reading.


Wednesday, February 17, 2016

Front Yard Forestry: Cabling Weak Trees

Front yeard foresteryOne of the ways Mother Nature keeps the forests healthy and strong is by “letting” trees with poor structure split during high wind or ice load events. Such trees become decayed and die young. Those with better genetics (or better luck) are the trees that reach maturity. This selection process is great for woodlands, but it doesn’t work quite the same way for trees growing in yards, streets and parks.

Trees often develop imperfections. The vast majority of these are benign, but some can be dangerous. To avoid breakage of large limbs and associated flying lawsuits and debris, trees with obvious defects are often removed. But since many problems are a result of human activities, it hardly seems fair to cut down a mature shade tree if there’s an alternative. » Continue Reading.


Tuesday, February 2, 2016

Happy Groundhog Day: The World Of Woodchucks

Groundhogday

Researchers are still puzzling over the age-old question, “How much wood could a woodchuck chuck if a woodchuck could chuck wood,” but I may have an answer. Re-brand the woodchuck.

Like the words skunk and moose, woodchuck (wojak) is a Native American term, Algonquin in this case. I don’t know its literal translation, but I suspect it means “fat fur-ball that can inhale your garden faster than you can say Punxsutawney Phil,” or something pretty close to that. » Continue Reading.


Tuesday, January 19, 2016

This Weird Winter And Adirondack Wildlife

Deer Yarding Area“Make me one with everything.” If you had to guess, you’d probably say that was a diner order, or a supplication to the Divine. This winter, I think someone whispered that line in Mother Nature’s ear, because even though it is not yet half over, she has already made us a winter with everything. It’s as if she glanced at her weather playlist and hit the buttons for unseasonable warmth, extreme cold, high winds, rain, sleet, ice, and snow, and then selected the “shuffle” function and walked away.

After each meteorological mood swing I have heard people comment how confused the weather makes them. You plant daffodil bulbs on Christmas, shovel heavy snow the next week, then need crampons a few days later because it rained and then suddenly froze. If you think it’s hard for us humans who can retreat into our posh shelters, imagine how the animals feel. » Continue Reading.


Friday, December 25, 2015

Puffballs: Giants Of The Mushroom World

“Never eat anything bigger than your head.” I don’t know if cartoonist Bernard Kliban came up with that or if it’s a nugget of old folk wisdom. Certainly you should not eat anything that big without at least chewing it first.

But if you like mushrooms, you can find wild ones that are in fact much larger than your head. » Continue Reading.


Tuesday, December 22, 2015

Porcupines: The Original Bark Eaters

Porcupine photographed by Mary HarrschWhat fearless animal has an adorable face, plows snow all winter and has a six-million acre park named after it?

One of 29 species worldwide, the North American porcupine (Erethizon dorsatum) is the largest New World species, growing to 36 inches long and weighing as much as 35 pounds. That makes it the second-largest North American rodent behind the beaver, but still puny compared to an African crested porcupine which can exceed 60 pounds. It is also the only cold-hardy porcupine, and one of the few that regularly climb trees. » Continue Reading.



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